Home / 20,647.04-28,501.63-13,941.74

Finding the Fourth Proportional to 20,647.04, 28,501.63 and 13,941.74

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Solution

The fourth proportional to 20,647.04, 28,501.63 and 13,941.74 is: 19,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.04 : 28,501.63 = 13,941.74 : x
  2. Step 2: Convert to fraction form
    20,647.04/28,501.63 = 13,941.74/x
  3. Step 3: Cross multiply
    20,647.04x = 28,501.63 × 13,941.74
  4. Step 4: Simplify right side
    20,647.04x = 397,362,351.44
  5. Step 5: Solve for x
    x = 397,362,351.44/20,647.04
  6. Step 6: Final answer
    x = 19,245.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.